.middle {
    position: absolute;
}

.middle_words ul {
    height: 50px;
    border-bottom: 1px solid #b2191b;
}

.middle_words ul li {
    float: left;
}

.middle_words ul li {
    margin: 15px 25px;
    font-size: 16px;
}
.middle_words ul li:first-child {
    margin: 0;
}

/* 全部分类 */
.middle_words dl {
    width: 215px;
    font-size: 15px;
    color: white;
    background-color: red;

}

.middle_words dl dt {
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #b2191b;
}

.middle_words dl dd {
    height: 31px;
    line-height: 31px;
    text-indent: 1em;

}



.rotation_chart {
    top: 8px;
    left: 224px;
    width: 1200px;
    height: 456px;
    background-color: aquamarine;
}
.bigImage {  
    float: right; 
    width: 723px;
    height: 456px;
    background-color: blue;
}

.smallpicture {
    float: right;
    width: 250px;
    height: 456px;
    background-color: blueviolet;
}




